<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>这是页面标题</title>
</head>
<body>
你上课在干嘛？
<input type="radio" name="1">睡觉
<input type="radio" name="1">学习
<input type="radio" name="1">看手机
<input type="radio" name="2">旷课了
</body>
</html>
